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Showing posts from May, 2021

Features of the Planetary Continuously Adjustable Gear Train as Element of the Kinematic Chain- Juniper Publishers

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 Civil Engineering Research Journal- Juniper Publishers   Abstract It is shown in the article that a planetary continuously variable transmission is the result of the development of a gear according to the criterion of gear ratio, and its features caused by the need for the formation of kinematic chains are considered. Go to Introduction In our opinion, the planetary smoothly adjustable transmission is capable of satisfying the need for a continuously variable gear, which is becoming more and more clearly emerging in recent times, the operation principle of which implies radical changes in the gear design, namely, fragmentation of the central gear and satellite. For a more complete understanding of its possible role in the class of mechanical gears, it is necessary to turn to the sources of its origin. Go to Main Part A continuously variable planetary gear is the result of the natural development of such a technical object as a gear known for millennia. The following reasoning confirms

Self-Sensing Concrete for Smart Infrastructure- Juniper Publishers

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  Civil Engineering Research Journal- Juniper Publishers   Opinion Along with the research advancement in the field of nanotechnology, the sensor used in construction industry has also become smart which are designated as self-sensing materials. For the smart cities to be smarter, these self-sensing materials are proving more helpful, as they monitor structural health of the civil engineering infrastructures. These smart materials include smart concrete, which imparts any concrete structure the abilities of self-sensing. This self-sensing concrete establishes the relationship between changes in internal strain and changes in corresponding material properties like electrical resistance or temperature. These sensors are having more advantages of cost and sensing size, over the conventional structural health monitoring sensors available in the market as it provides more durability combined with uniformly distributed measurements. This article takes a review of the recent advancements in s

Co-Creation in Living Labs to Accelerate Innovation- Juniper Publishers

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 Civil Engineering Research Journal-Juniper Publishers   Abstract Innovation in the construction sector occurs as stepwise reconfigurations of subsystems, but sometimes the effect of many systems coincides and there is so called radical change. Stepwise reconfigurations of individual systems such as windows, insulation, and heat recovery systems have made it possible to heat buildings with preheated inlet air instead of water radiators. Thus, making building more sustainable, cheaper and resource-efficient; the potential for radical change has been achieved. The question is then why not every new building uses preheated inlet air? The reason is not the lack of innovation or new technologies. It is rather connected to malfunctioning structures related to incentives, collaboration, testing, and validation, resulting in norms and standards that aim to reproduce existing technologies, preferring incremental innovations over radical ones. This article argues that testbeds and Living Labs ar

Influence of Vegetation on Shear Stress and Flow Rate in Open Channel using Flow3D- Juniper Publishers

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 Civil Engineering Research Journal- Juniper Publishers   Abstract The flow in the composite channel is different from the simple channel due to the strong flow exchange between the main channel and the flood plain. In this study, the flow pattern of composite channels under non-vegetated and parallel vegetation conditions was investigated. To investigate the effect of vegetation density on flow pattern, the ratio of the distance between plants to their diameter (L / D) was used. This ratio was assumed to be 3, 8 and 16. The results showed that the longitudinal velocity and average depth velocity in the main channel for the vegetation-less state were less than vegetation-state and the opposite was observed in the floodplain. In the vegetation-free state, as the main channel moves toward the floodplain, the average deep velocity decreases, and then increases in the joint season between the main channel and the floodplain, and then continues downward. In a parallel arrangement, by decrea